Magnetic separator for sorting heterogeneous material.



, n. R. BRYAN. v MAGNETIC SEPAR ATOR FOR SORTING HETEROGENEOUS MATERIAL.

APPLICATION FILE-D MAY 29, I914.

LQ84,87% Patented Nov. 12, 1918.

2 SHEETSSHEEI 5] Woe nto'o sa mmmw v D. R. BRYAN.

MAGNETIC SEPARATOR FOR SORTING HETEROGENEOUS MATERIAL.

APPLlCATlON FILED MAY 29, 1914.

Patented Nov. 12, 1918,

2 SHEETSSHEEI 2.

DANIEL a. BRYAN, 0F CHATHAM, NEW JERSEY.

MAGNETIC SEPARATOR FOR SORTING HETEROGENEOUS MATERIAL.

Specification of Letters Patent.

Patented Nov. 12,1918.

Application filed May 29, 1914. Serial No. 841,793.

To all whom it may concern:

Be it known that I, DANIEL R. BRYAN, a

citizen of the United States, residing at Chatham, Morris county, NewJersey, have invented certain new and useful Improvements in MagneticSeparators for Sorting Heterogeneous Material, of which the following isa specification.

The present invention relates to magnetic separators for sortingheterogeneous material and consists in the combinations, andarrangements of elements hereinafter described and particularly setforth in the accompanying claims.

The invention has for its purpose to provide a separating apparatuswhich will recover all the magnetic particles held in suspension in thedust incident to theagitating or initial stage in the operation, andwhich in the'present practice of separation is carried away with thedust and discarded.

The invention further contemplates an apparatus embodying the abovefeature as an integral element, in distinction from an auxiliary part;one wherein the complete mechanism constitutes a single andself-contained unit; and one in which the material under treatment isacted on in one continuous and unbroken operation.

The construction of apparatus is essentially the same as that disclosedin United States Reissue Patent No. 14,266, issued to me and to J. W.Bryan on March 6th, 1917, and U. S. Patent No. 1,139,484, issued to meon May 18th, 1915, respectively, and on which the present disclosureconstitutes an improvement in the respects noted.

The invention is shown by way of illustration in the accompanyingdrawings wherein:

Figure 1 is a longitudinal vertical sectional view with parts inelevation.

Fig. 2 is a transverse sectional view taken through the initialseparating mechanism, or sorting scre n.

Fig. 3 is a transverse sectional view through the screen and showing theoperat-.

ing mechanism thereof. 1

Fig. 4 is a top plan view, partly in section, of the mechanismcomprising the second separating stage; and

Fig. 5 is a longitudinal sectional view of the same.

Referring to the construction in detail, 1 designates a casing havingmounted to rotate therein a revoluble. screen or perforated cylinder 2-.which receives the material en masse through the throat 3 of thehopper 4 and which throat is provided with a regulating gate or slidingvalve 5. The screen 2 is journaled at either end by means of trunnionrings 6 and 7 engaging with rollers 8 and 9 respectively, and: isconnected to be driven from a motor 10 driving the shaft 11, by themiter gear 12, and a pinion 13 on said shaft meshing with the pinion 14.secured to the trunnion ring 7.

The rotatable screen 2 is disposed in a longitudinally inclineddirection and has the openings thereof graduated from the receiving endto the discharging end thereof and said openings constitute a pluralityof discharging stages having associated therewith the several funncls15, 16, 17 and 18 respectively. By this provision, the material'delivered to the screen for initial separation has its finer orundersized particles removed and sorted into independent re ceivers,whence it may be subsequently treated and its valuable constituentrecovered. a

Each receiving hopper of the series (15 to 18) is provided with amagnetic separator consisting of an endless belt 19 disposed in the pathof the falling material as indi cated by the arrows in Fig. 2, and whichis mounted to travel on a pulley-2O and the frame or casing 21 of themagnet 22 adapted to be constantly energized from a suitable.

source. The several belts 19, 23, '24: and 25 are connected to be drivensimultaneously from the shaft 26. that is suitably journaled in thebearings 27 of the standards 28, and has a beveled gear 29 meshing withthe beveled gear 30 on the armatureshaft 31 of the motor 32.

Immediately beneath the belt, the receiver is divided to receive thenon-magnetizable or extraneous material through the passage 33. whenceit enters the accumulating receptacle 34, and the magnetizable particlesare delivered into the trough 35 having its bottom inclined to deliverthe collected mass to the receiver 36. whence it is delivered into theaccumulating receptacle 37. The trough 35 is constructed to receive themagnetizable particles from the several magnetic separators and todeliver the same into the singlereceptacle 37.1;0 which access is bad bythe gate 38, while the non-magnetizable substances from the separatorsare dechamber is open to receive the material from the discharging endof the screen, and WlllCll has its bottom wall hingedly mounted on thestandard 42, and adapted to be agitated by a cam 43 on the shaft 11driven from the motor 10. Said bottom Wall 41 is inclined to the endthat. the material deposited thereon will feed by gravity onto theconveyer belt 44 and Whose function will be presently de cribed. A fan45 is mounted within thecasing 46 forming an extension of the casing 40and is adapted to deliver a continuous blast or current of airtransversely of the bottom Wall 41 and carry off the lighter part clesof material deposited thereon. The air blast also acts to transverselydistribute or spread out the material over the bottom wall, deflectingthe material laterally more or less, according to size and Weight of theparticles, and to removethe non-magnetic material mechanically retainedby attracted magnetic material. The material thus removed is carried insuspension into the chamber 47, whence it passes through a series ofchutes 48. 49, 50 controlled by the several doors 51 after the manner ofthat described in my former U. S. Patent No.

1,139,484, heretofore referred to. This feature of the apparatus and itsmanner of operation'is identical with that above identified except thatin the present case the several doors 51 are adapted to be adjustablymounted by means of the series of apertures 52 designed to receivethehinge or supporting rods 53 of said doors. Each door is furtherprovided with means for securing the same in its angularly adjustedposition consisting of an arm 54 carrying a screvv 55*that engages withthe side of the casing 47 after the manner illustrated in Fig. 4. Thedoors controlling the several passageways into the chambers 48, 49, 50may, therefore. be positioned for varying the eX- tent of inlet openingin the passages or completely closing the same, in accordance with thecondition and nature of the material under treatment.

A gate or valve 54 is located on the casing I 1 adjacent to thedischarge end of the screen 2 and has for its purpose to regulate thepassage of material therethrough and to shut off the air blast of thefan 45 from passing into the rotary screen for obvious reasons.

The belt 44 and its motor 44 of the final separating stage isconstructed and'works after the manner. of the magnetic separatorsassociated with the rotary screen. The magnetizable-particles in thematerial delivered to the belt 44' from the agitator 41 are .caused toadhere tothe belt, through the magnet 55 until it reaches the point 56when it is acted on by gravity alone and falls into the accumulatingreceptacle 37. A-

stated, it is to be understood that I am notlimited to the precisearrangement shown but may, on the other hand, adopt such alterations ormodifications, Within the scope of the claims, as will better suit theinvention to the end in view.

What I claim is- I 1. In combination, an inclined support, means forpassing material to be sorted thereover, means for passing a current ofair against the .material on the support transversely ofthe line ofmovement to distribute said material and remove the lighter portions,and a magnetic separator adapted to receive the material in distributedcondition from the support.

2. In combination. an inclined support for receiving material to besorted, means for agitating the support to effect the passage ofmaterial thereover, means for passing a current of air against thematerial on the support transversely of the line of movement todistribute said material and remove the lighter portions, and a magneticseparator adapted to receive the material in disportions, and a magneticseparator adapted,

to receive the material in distributed condition from the support.

4. In combination, a support, means for passing material to be sortedthereover,

means for passing a fluid blast across the material on said supportsubstantially horizontally and transversely of its travel to distributesaid material and remove the lighter portions, and a magnetic separatoradapted to receive the material in distributed condition from thesupport, substantially as set forth.

for projecting a fluid current directly 5. In combination, a support formaterial, means for delivering a fluid current over the materialon thesupport at an angle to its direction of travel to remove the lightermaterial and distribute the remainder as a stratum, and a magneticseparator adapted to receive the material as stratified.

6. In an apparatus for sorting heterogeneous material. the combinationof an extended supporting and transporting surface, adjacent meansforming an extended magnetic field approximate to and substantiallyparallel to the plane of said surface, mears su stantially horizontallythrough the material in-tran'sit to the supporting surface and upon thematerial supported by said surface atan angle to the direction of travelthereof.

7. In combination, means for preliminarily sizing material to be sorted,an extended supporting and transporting surface located adiacent saidmeans and adapted to receive the initially sized material; subjacentmeans forming an extended magnetic field adapted to receive the materialfrom said surface, and means for projecting a fluid current through thematerial in transit to the supporting surface and substantially in theplane of said surface and upon the material supported bv said surface atan angle to the direction of travel.

8. In combination, a support for receiving and conveying material forseparation, means for delivering the material thereto, means forcreating a fluid current to act on the moving material for removing thelighter particles therefrom and distributing the residue in a directiontransverse to its direction of travel to form a stratum, and a 'magneticseparator adapted to receive the stratum of material to remove themagnetic particles therefrom.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses, this 27 th day of May, 1914.

DANIEL R. BRYAN.

Witnesses: A

R. Z. MoCoLLooH, C. Jams CRoNm.

